51553730360 has 384 divisors, whose sum is σ = 140403456000. Its totient is φ = 16853222400.

The previous prime is 51553730311. The next prime is 51553730399. The reversal of 51553730360 is 6303735515.

It is a happy number.

51553730360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51553730360² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 873792011 + ... + 873792069.

It is an arithmetic number, because the mean of its divisors is an integer number (365634000).

Almost surely, 2^51553730360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51553730360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70201728000).

51553730360 is an abundant number, since it is smaller than the sum of its proper divisors (88849725640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51553730360 is a wasteful number, since it uses less digits than its factorization.

51553730360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 141750, while the sum is 38.

The spelling of 51553730360 in words is "fifty-one billion, five hundred fifty-three million, seven hundred thirty thousand, three hundred sixty".